Monday, June 15, 2009

Why does a car engine overheat?

There are many different reasons that can cause an engine overheat, but they all have in common three aspects. The three aspects which all engine overheat factors have in common are that they cause that the heating system can not get rid of heat, they cause a loss of coolant or they directly cause too much heat in the engine.

One first problem which might be the cause of an engine overheat is a problem with the radiator cap and the pressure it holds. If the radiator cap does not hold pressure correctly then coolant could boil and therefore the engine would overheat. Another reason might be caused by thermostat failures; it is recommendable that you check it.

The car engine might also overheat due to coolant leaks such as those from the radiator, the hoses, the water pump, the freeze plugs or any others. Also, problems in the water pump could be the cause and therefore you should check it and replace it in case it is needed.

Some other reasons by which the car engine could overheat are problems in the exhaust system which you can discover by checking vacuum readings, pipes and converter. Besides, you should also make sure that the radiator hose has not collapsed and the ignition timing is working properly.

You should also check the electric cooling fan by making sure that the fan motor, the relay and temperature are correct or otherwise it could cause the engine to overheat. Besides this, you should also check the radiator in case there are any debris in it as well as you should check its hose in case it has collapsed.

It is also recommended that you check the antifreeze concentration which should be 50/50 in order to be correct, otherwise it could cause the car engine to overheat. If you do not find why your engine does overheat, you should ask a mechanic or an expert for advice. You should not try to fix this if you do not have the proper tools and general car knowledge necessary for it.

Sunday, June 14, 2009

Save At The Pump

Gas prices have been spiraling out of control for months, and there is no end in sight.
Increased gas prices do not just hit you when you fill up your tank though. Just think
about it for a minute and you will realize how many other ways rising oil and gas
prices will cost you. The price of airline travel and shipping services are likely
to rise, as is the cost of many other goods as retailers are forced to pay more for

You may even see your property taxes increase as towns have to pay more to keep their
police cars, fire engines, and garbage trucks on the road.

During times like these it is important to get as much bang for you buck at the gas
pump as possible.

So how can I save money on gas?

While there is little you can do about the market price of a barrel of oil, there are
ways to keep down your own personal costs at the gas pump. Here are some suggestions:

Don't pay extra for premium gas (you don't need it). Consult your owners manual
and stick to the recommended octane. Most cars run just fine on regular unleaded
gas and you will get no extra performance by using premium gas.

Shop around. Keep a watchful eye and you'll be surprised at how much prices can
vary from one gas station to the next. I've seen differences of eight to ten cents
per gallon between gas stations directly across the street from one another. Seems
like a small difference but it adds up over time.

Schedule your errands to minimize drive time, or if possible walk.

Travel light. Keeping your car and backseat loaded down wastes fuel as it requires
more energy to move a heavier car. Take only the essentials (a spare tire, first-aid
kit, jumper cables, etc.) with you.

Slow down. The faster you drive the fewer the miles you will get per gallon.

Drive steady. Avoid quick stops and accelerations that waste fuel. Anticipate braking
ahead of time and ease onto the gas pedal rather than flooring it.

Maintenance is key. Keeping your engine tuned and tires inflated can make a difference in your fuel consumption. Under-inflated tires create drag which causes the engine to use more energy to propel the car. Plus, it is unsafe to drive on tires that have too little or too air in them.

Auto Upkeep: Basic Car Care, Maintenance, and Repair

If you are in the market for a new car, consider models that are more fuel efficient.

Use the air conditioner judiciously. There are two schools of thought on this one.
The first says you will burn less fuel with the windows down and the AC off. The
second says that driving with the windows open creates drag, which wastes more fuel
than would be used if the AC was on and the windows up.

So which one is true? Well...both of them really. The car will consume more fuel
with the air conditioner on and the windows down, up to about 45-50 miles per hour.
As you drive faster, the drag caused my the open windows will actually cause high
fuel consumption.

So the rule of thumb is this: keep the AC off and the windows down when you are
cruising around town and on city streets. Once you reach the highway or about 50 mph,
roll up the windows and turn the on the AC.

Using these tips will help you save money on gas. While you may not notice a huge
difference with each fill up, the savings will compound with each fresh tank